The Goodyear & Tire Rubber Company

Other

Nihat Ali Isitman

Georges Marcel Victor Thielen

Claude Charles Jacoby

Luisa Fernanda Munoz Mejia

Paul Harry Sandstrom

Manuela Pompei

Marc Weydert

Pascal Patrick Steiner

Christian Jean-Marie Kaes

Joseph John Kulig

Julia Martine Francoise Claudine Tahon

Carlo Kanz

Robert Alan Woloszynek

Arindam Mazumdar

Eric Engeldinger

Frida Nzulu

Philippe Schmit

Marine Sophie Francoise Wassen

Antonia Felicitas Broemmel

Isabelle Lea Louise Marie Lambert

Lucas Manuel Dos Santos Freire

Jennifer Elizabeth Labbe

Hannah Long

Caude Charles Jacoby

Ronda Jane Hinterlong

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), up to 100 phr of a solution polymerized styrene-butadiene rubber; where Ris selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups; Ris C11 to C21 alkyl or C11 to C21 alkenyl;

Pneumatic tire

This invention is based upon the unexpected finding that a hydrocarbon traction resin can be dispersed into the oil used in making an oil extended emulsion and solution rubbers to attain improved performance characteristics. For instance, this technique allows for the hydrocarbon traction resin to be incorporated into the rubber at a higher level than would ordinarily be possible using conventional mixing techniques. In tire tread compounds this provides improved wet traction characteristics without compromising cured stiffness (dry traction) and ultimate properties (chip/chunk resistance). This technique can be used to incorporate a resin into virtually any synthetic rubber that can benefit from being oil extended. It is of particular value in making resin modified solution styrene-butadiene rubber (SSBR), emulsion styrene-butadiene rubber (ESBR), high cis-1.4-polybutadiene rubber, and synthetic polyisoprene rubber which are formulated for use in tire tread compounds.

Resin modified oil extended rubber

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr),

This invention relates to a tire with a tread of a rubber composition for promoting a combination of beneficial wet traction and reduced rolling resistance, while limiting any loss of winter traction at low temperatures. The tread rubber composition contains a combination of high and lower glass transition temperature (Tg) elastomers. Its reinforcing filler is primarily precipitated silica. The high Tg elastomer is comprised of synthetic high vinyl polybutadiene rubber and the lower Tg elastomer is comprised of at least one of natural and synthetic cis 1,4-polyisoprene rubber. The tread rubber composition may contain at least one of vegetable oil based rubber processing aid and traction promoting resin. The tread rubber composition is intended to be exclusive of styrene-containing elastomers.

Tire with tread to promote wet traction and reduce rolling resistance

The present invention is directed to a vulcanizable rubber composition comprising (A) 100 parts by weight of elastomer consisting of 70 to 100 parts by weight, er 100 parts by weight of the elastomer (phr), of an isoprene-butadiene rubber having a Tg ranging from &#x2212;100&#xb0; C. to &#x2212;50&#xb0; C., and 0 to 30 phr of a second elastomer selected from the group consisting of isoprene-butadiene rubber having a Tg ranging from &#x2212;49 to &#x2212;20&#xb0; C., natural rubber, synthetic polyisoprene, and polybutadiene, (B) from 30 to 80 phr of a resin having a Tg of at least 20 C, (C) from 0 to 4 phr of an oil, and (D) from 80 to 180 of a filler selected from the group consisting of carbon black and silica.

Rubber composition and pneumatic tire

The present invention is directed to a pneumatic tire comprising a tread, the tread comprising a rubber composition comprising a diene elastomer, a pre-hydrophobated precipitated silica, a blocked mercaptosilane, a terpene-phenol resin, and a low molecular weight polybutadiene functionalized with a hydroxyl functional group, wherein the pre-hydrophobated precipitated silica is hydrophobated prior to its addition the rubber composition by treatment with at least one silane selected from the group consisting of alkylsilanes, alkoxysilanes, organoalkoxysilyl polysulfides and organomercaptoalkoxysilanes and optionally at least one dispersing aid selected from the group consisting of fatty acids, diethylene glycols, polyethylene glycols, fatty acid esters of hydrogenated or non-hydrogenated Cor Csugars, polyoxyethylene derivatives of fatty acid esters of hydrogenated or non-hydrogenated Cor Csugars.

Pneumatic tire having tread with hydroxy-terminated polybutadiene

The present invention is directed to a pneumatic tire having a tread comprising a radially outer cap layer and radially inner cap layer underlying the outer cap layer; the outer cap layer comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), (A) from about 80 to about 20 phr of a solution polymerized styrene-butadiene rubber having a glass transition temperature (Tg) ranging from &#x2212;85&#xb0; C. to &#x2212;50&#xb0; C.;

The present invention is directed to a pneumatic tire having a tread comprising a vulcanizable rubber composition comprising, based on 100 parts by weight of elastomer (phr), 100 phr of a diene based elastomer having a glass transition temperature less than &#x2212;50&#xb0; C.; from 30 to 65 phr of a fatty acid monoester of formula 1 where Ris selected from C1 to C8 linear or branched alkyl, C1 to C8 linear or branched alkenyl, and C2 to C6 linear or branched alkyl substituted with from one to five hydroxyl groups; Ris C11 to C21 alkyl or C11 to C21 alkenyl; less than 10 phr of a petroleum-derived oil; and from 50 to 130 phr of silica.

This invention relates to a tire with tread for promoting a combination of wet traction and service at low temperatures of a rubber composition containing a styrene/butadiene elastomer, cis 1,4-polybutadiene rubber, liquid high Tg styrene/butadiene polymer, resin and vegetable triglyceride oil.

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Ettelbruck, Luxembourg

Nihat Ali Isitman